I have a 86 300zx recently I've been trouble shooting some problems with an throttle position sensor and fuel temperature sensor. These were the codes that I was recieving from the ECCS. When I put the new Throttle Pos Sensor on I used a meter to adjust to zero ohms while the engine was running and it died. Now when I turn the key everything goes dead but the battery is still showing 12-14 volts. I can go back a few days later and when I turn the key the light and everything on the dash will light up and when I turn the key the the same thing happens. In my Chiltons manual I can see on the prints that there is a circuit breaker and also an inhibitor relay. I am freekin clueless..........Please Help Thanks so much